1)
In a saucepan, heat the olive oil and saute the onion until browned. Add
the rest of the ingredients and allow to cook for 2 hours.
2) Chiffonade the basil leaves and add to the sauce.
3) Turn off the heat and add the butter and salt and pepper

1)
In a saucepan, heat the olive oil and saute the onion and garlic until
browned. Add the rest of the ingredients and allow to cook for 2 hours.
2) Chiffonade the small handful basil leaves and add to the sauce.
3) Turn off the heat and add balsamic vinegar and salt and pepper